Hi Belly-ttt
You might see the answer your question in the following excerpt of dictionary (see the written in bold italic)
coun·ter·part (
koun'tər-pärt')
n.- One that closely resembles another.
- One that has the same functions and characteristics as another; a corresponding person or thing: Their foreign minister is the counterpart of our secretary of state.
- A copy or duplicate of a legal paper.
- One of two parts that fit and complete each other.
- One that serves as a complement.
Regards.
V.